Seasonal Arctic sea ice forecasting with probabilistic deep learning
Nature Communications, 2021 Accurate seasonal forecasts of sea ice are highly valuable, particularly in the context of sea ice loss due to global warming. A new machine learning tool for sea ice forecasting offers a substantial increase in accuracy over current physics-based ...
Tom R. Andersson +16 more
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Impact of rheology on probabilistic forecasts of sea ice trajectories: application for search and rescue operations in the Arctic [PDF]
, 2018 We present a sensitivity analysis and discuss the probabilistic forecast capabilities of the novel sea ice model neXtSIM used in hindcast mode. The study pertains to the response of the model to the uncertainty on winds using probabilistic forecasts of ...
Bertino, Laurent +4 more
core +4 more sources
Using Icepack to reproduce ice mass balance buoy observations in landfast ice: improvements from the mushy-layer thermodynamics [PDF]
The CryosphereIcepack (v1.1.0) – the column thermodynamics model of the Community Ice CodE (CICE) version 6 – is used to assess how changing the thermodynamics from the Bitz and Lipscomb (1999) physics (hereafter BL99) to the mushy-layer physics impacts the model ...
M. Plante +8 more
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Direct measurement of optical properties of glacier ice using a photon-counting diffuse LiDAR
Journal of Glaciology, 2022 The production of meltwater from glacier ice, which is exposed at the margins of land ice during the summer, is responsible for a large proportion of glacier mass loss.
Markus Allgaier +5 more
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Modeling enhanced firn densification due to strain softening [PDF]
The Cryosphere, 2022 In the accumulation zone of glaciers and ice sheets snow is transformed into glacial ice by firn densification. Classically, this process is assumed to solely depend on temperature and overburden pressure, which is controlled by the accumulation rate ...
F. M. Oraschewski +2 more
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Fundamental Ice Crystal Accretion Physics Studies [PDF]
SAE Technical Paper Series, 2011 <div class="section abstract"><div class="htmlview paragraph">Due to numerous engine power-loss events associated with high-altitude convective weather, ice accretion within an engine due to ice-crystal ingestion is being investigated. The National Aeronautics and Space Administration (NASA) and the National Research Council (NRC) of ...
Struk, P. +7 more
openaire +2 more sources
On the nonlinear viscosity of the orthotropic bulk rheology
Journal of Glaciology, 2022 We compare different ways the bulk flow nonlinearity of glacier ice can be captured in an orthotropic rheology. Specifically, we compare the unapproximated orthotropic rheology, derived from plastic potential theory, to existing approximations that ...
Nicholas M. Rathmann, David A. Lilien
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Microstructure evolution of young sea ice from a Svalbard fjord using micro-CT analysis
Journal of Glaciology, 2022 We analysed the three-dimensional microstructure of sea ice by means of X-ray-micro computed tomography. Microscopic (brine- and air- pore sizes, numbers and connectivity) and macroscopic (salinity, density, porosity) properties of young Arctic sea ice ...
Martina Lan Salomon +2 more
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Ice: a strongly correlated proton system
, 2005 We discuss the problem of proton motion in Hydrogen bond materials with special focus on ice. We show that phenomenological models proposed in the past for the study of ice can be recast in terms of microscopic models in close relationship to the ones ...
A. H. Castro Neto +14 more
core +1 more source
Density matters: ice compressibility and glacier mass estimation
Journal of Glaciology, 2022 Ice flow models typically assume that ice is incompressible, a reasonable assumption because ice density changes are indeed small and have a correspondingly small effect on the overall mass balance of glaciers and ice sheets.
Bradley Paul Lipovsky
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